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International Journal of Engineering، جلد ۳۵، شماره ۱، صفحات ۱۸۴-۱۹۰
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عنوان انگلیسی Effect of Various Microstructures Obtained from Heat Treatment on Machinability Behavior of Ti-6Al-4V Alloy
چکیده انگلیسی مقاله Drilling test on cylindrical work-pieces was carried out to analysis effect of various microstructures resulting from heat treatment on the machinability of the Ti-6Al-4V alloy. Chip morphology plays a predominant role in determining machinability and wearing of a tool during the drilling of titanium alloys. For this purpose, Ti-6Al-4V was heat treated in three variant cycles then drilled by 2mm diameter drill at 18.8 m/s speed and 0.1 mm/rev feed rate. Results show that heat treatment can effect on hardness. The SEM results showed that by changing their phase and morphology obtained from diferent heat treatment cycle, the machining conditions change. Increasing hardness led to increases length of spiral chips that indicate easy drilling. At a lower depth of cutting, ribbon chips are more compacted in comparison with samples which have a lower hardness. Drilling temperature was increased by increasing deep hole. Samples with lower hardness had a higher temperature in drilling.
کلیدواژه‌های انگلیسی مقاله Heat treatment,Machinability,Wear,Ti-6Al-4V alloy
نویسندگان مقاله M. T. Noghani |
Materials Science and Engineering Department, Imam Khomeini International University (IKIU), Qazvin, Iran

O. Bayat |
Department of Material Science and Engineering, Hamedan University of Technology, Hamedan, Iran

O. Moghadam |
Materials Science and Engineering Department, Imam Khomeini International University (IKIU), Qazvin, Iran

V. A. Mehrizi |
Department of Materials Engineering, Karaj Branch, Islamic Azad University, Karaj, Iran

نشانی اینترنتی https://www.ije.ir/article_139971_d212610bdbd62773d739d0330c8d7c9b.pdf
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